A/C code help

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Mar 12, 2008 | 11:28 PM

pitmanr200

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From: ky

A/C code help

Ok i fulled with my a/c some more today and did diagnostic on it. It needs freon I know that. but I was looking to see if there were any error codes. I got 21 23 24. now 21 and 24 are because it was dark outside. 23 is a pressure switch circuit so what does that mean is bad. I hope not compressor or could it just be there is no freon in it.

Mar 13, 2008 | 08:25 AM

pitmanr200

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From: ky

no body has seen this code before.

Mar 13, 2008 | 06:07 PM

sockfocks

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From: Oklahoma

usually codes are preceded by a P0XXX, not sure what 21, 23, 24 mean. How did you get these codes?

Mar 13, 2008 | 10:02 PM

pitmanr200

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From: ky

not a engine code. this is the diagnostics on the climate controll. you access it by simulateously pushing auto and air circ and turning ign to on. it will give you codes.. on what is wrong with a/c

Mar 13, 2008 | 11:40 PM

Debonair

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From: 408 NOR CAL

Dtc 23

*** You did not put a Year or Model/Engine above - This info is listed for a 00 GS300 but covers both engines - Use at your own risk***

CIRCUIT DESCRIPTION
The pressure switch sends the appropriate signals to the ECM when the A/C refrigerant pressure drops too low or rises too high. When the ECM receives these signals, it outputs signals via the ECM to switch OFF the compressor relay and turns the magnetic clutch OFF

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Last edited by Debonair; Mar 13, 2008 at 11:51 PM.

Mar 13, 2008 | 11:41 PM

Debonair

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From: 408 NOR CAL

Wiring Diagram

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Mar 13, 2008 | 11:44 PM

Debonair

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From: 408 NOR CAL

Diagnostic Step #1

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Mar 14, 2008 | 12:30 AM

pitmanr200

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From: ky

thanks alot. it is a 98 gs400, that makes sense being its out of freon. that i why it is throwing that code to shut compressor off so it doesnt burn up due to no lube.